The ABC of CLR is composed by individual articles and chapters published by industry experts, as an independent source of verified information.
 EPCI European Passive Components Institute experts original articles
 CLR Passive Components Handbook by P-O.Fagerholt*
 Trilogy of Magnetics by Würth Elektronik eiSos**
*used under EPCI copyright from CTI Corporation, USA
**used under EPCI license by: Würth Elektronik eiSos, handbook printouts can be ordered here.
The ABC of CLR handbook is currently under construction with step by step build in progress